What does the Baxi E53 fault code mean?

Your boiler has detected that the exhaust gases are not clearing properly, which could mean the flue pipe is obstructed.

How much does it cost to fix Baxi error code E53?

Typical repair cost for the Baxi E53 fault is £90-250 including labour.

Poor combustion – flue terminal may be blocked

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Older boilers — thermocouple, draught, gas supply.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.